Fall Children's Book Week: Trains RUN!

Thank you, Ms. Julie, for reading Trains run!

For today's STEM activity we are going to build train wheels!

results:

The train wheels connected at the top of the cup worked better! Train wheels are bigger on the inside, so if a train shifts to the left or right the diameter (how big the wheel is) can change. The axle connecting the wheels spin the wheels at the same speed, but the distance each wheel travels can change. Having train wheels bigger in the middle helps to keep the train on the track and everyone on the train safe!